What radon reduction actions should be taken when a high level of radon gas is detected in a house?
Radon gas is present in all homes, from the minute amounts of uranium present in earth materials such as rocks, soils, brick and concrete. In most cases, the amount will be so low that no remedial action is justified. Above a certain level however, the householder may wish to apply one of several tried and tested methods to reduce radon levels in the house. The choice of method depends on the radon level and the way the houseis built. For instance, increasing the ventilation, especially on the ground floor, will in most cases cause a moderate reduction in the radon level. It’s a good idea to make sure that all airbricks are clear of obstructions. The most effective way to reduce high levels is to install a radon sump, a small void under a solid floor connected by a pipe to the outside. A small electric fan in the pipe continually sucks the radon from under the house and expels it harmlessly to the atmosphere. Modern sumps are often constructed from outside the house so there is no disr
